What are some examples of the specific theme of ignorance vs. wisdom in Act II of The Crucible?

Regrettably, I had to pare this question down from its
original form.  Act II features some fairly powerful elements of ignorance vs. wisdom. 
I think that one of the strongest examples of this is within the dynamic between
Elizabeth and John Proctor.  Both of them start off in the scene as demonstrating a
great deal of ignorance regarding one another.  Elizabeth shows herself to be
fundamentally unable to move past the relationship that John had with Abigail.  For his
part, John feels that he is constrained by his marriage in being constantly judged by
Elizabeth.  Yet, a gradual element of wisdom becomes apparent when both of them become
aware of the social climate of Salem.  Hale's visit exposes John's ignorance on
institutionalized religion, but also begins the process of bringing a sense of wisdom to
how a married couple has to end up taking up for one another and defend one another in
the face of challenge and adversity.  When Elizabeth is arrested, John promises to stand
by her and to get her released.  In this, one sees ignorance replaced with wisdom, a
step towards the eventual redemption that will mark both his character and their
marriage by the drama's end.